Bio 104 Unit 6: Biosphere

When was the greatest mass extinction?

What is the dominant plant in the salt marshes of estuaries along the Atlantic Coast?

Which is the primary nutrient that leads to water eutrophication?

When an organism’s tissues store a pollutant taken up from the environment over time.

What type of tree dominates Coniferous Forests?

Which biome is the most complex in structure and diversity?

Which of these lake zones is the well-lit, upper open waters.

Heavy rains in summer with drought in winter describes:

What destroyed the prairies of the North American plains?

The start of global air circulation patterns is due to:

How much trash was generated in the US in 2009?

True or False: Eutrophication can be natural or enhanced by human activities.

Earth is tilted on its axis about 23 degrees. This causes:

Where do Grasslands typically form?

Which of these is a way the ozone layer benefits us?

Tropical Rainforests receive ____ annual rainfall, occur between _____ ____North and South.

How many mass extinctions have occurred on Earth?

Which of these affects regional climate?

Many plants in deserts have adaptations that minimize their need for water. Example:

A lake that is enriched with nutrients is:

A group of all species in an area:

Which of these affects regional climate?

A newly formed lake that is deep, clear, and nutrient-poor is:

What major event was caused by the destruction of the prairies of the North American plains?

Wave-resistant formations of calcium carbonate secreted by generations of polyps:

Coral reefs form between _____ degrees North and South.

Areas of land characterized by their climate and predominant type of vegetation:

When is primary productivity highest?

Identify this biome: Low rainfall, frequent fires; short, woody shrubs

What is another word to describe “Broadleaf” trees?

Which of these lake zones describes the deep dark portion?

Species confined to limited area in which it evolved - often limited by resource requirements

Which of these involves periodic cooling of equatorial Pacific waters?

What is causing the current large scale extinction?

Mass extinctions are followed by a burst of speciation called:

Which latitude is where deserts usually form?

A rain shadow is caused on the ___ side of a mountain range.

A group of one species in a given area:

Which organisms starved to death due to the 1997-1998 El Nino event?

Which of these lake zones is the near shore area?

What type of biome is found in Northwest Alabama.

Many animals in deserts have adaptations that minimize their need for water. Example:

The concentration of a chemical increases as the pollutant moves up a food chain:

Which of these is a nursery ground for marine fish and invertebrates?

Habitats that are rich in endemic species and face a high degree of threat:

A species whose populations are declining, is likely to become endangered in the near future:

Approximately how long does species diversity take to recover after a mass extinction?

Which of these is the primary reason why grasslands don't become wooded forests:

Which of these involves periodic warming of equatorial Pacific waters?

Taigas (or Boreal Forests) are dominated by what type of vegetation?

Regions that receive an average of less than 10 cm (4 in) of rain per year

The mutualistic symbionts that are purged from the tissues of corals during times of stress.

When 2 unrelated species independently develop similar traits due to environmental pressures.

The _______________ includes all regions where organisms live

Which of these is a cause of desertification?

Warm air ___ and _______.

Which of these is a type of Tundra that has permafrost?

A species that has population levels so low it faces extinction in all or part of its range: